Improvement in planing-machines



` 2 4Sheets--Sheet 1f HENRYA. LEE.,

Improvement in Planing Machines. NO. 120,589, y Patented Nov.7,187ll.

2 Sheets-Shet2. HENRY A. LEE.

improvement in Planing Machines.

H @IDI PATENT FFICE.

HENRY A. LEE, OF WORCESTER, MASSACHUSETTS.

IMPROVEMENT IN PLANlNG-MACHINES.

Speciiication forming part of Letters Patent No. 120,589, dated November7, lcl.

To all whom it may concer/n:

Be it known that I, HENRY A. LEE, of the city and county of Worcesterand Commonwealth of Massachusetts, have invented certain new and usefulImprovements in Planin g and Molding Machines for Working /Vood; and Ido hereby declare the following to be a full, clear, and eX- actdescription ofthe same, reference being had to the accompanying drawingwhich forms a part of this specification, and in which- Figure 1represents a plan view of a machine embracing my improvements. Fig. 2represents a horizontal section of the same at line A B, Fig. 3. Fig. 3represents a front view. Fig. 4. represents a longitudinal verticalsection at line C D, Fig. 3; and Fig, 5 represents a rear-end view.

The nature oi' my invention consists in certain improvements in planingand molding machines7 as hereinafter described.

In the drawing, the parts marked A indicate the frame. B indicates thebed-plate; C, the upper cutter-head; D, the lower cutter-head; E El,

the top and bottom feed-roller, F F1 F2, the adjustable guides forguiding the boards through the machine; and G, the presser-plate abovethe under cutter-head D. The guides F F1 F2 are formed of such lengthsas will conveniently occupy the space between the cutter-heads,feedroller, and the end ofthe machine, being formed of greater or lesslength, as desired. They are firmly secured by screws, bolts, orotherwise to adjusting-slides H iitted to work in transverse grooves orslots formed through the bed-plate B. Screws l are arranged inhorizontal positions through downward-projectin g arms H of the slidesH, which screws are furnished with bevelgear heads J, that are held inbearings K attached to the under side of the bed-piece B, whereby thescrews I are supported.v Grooves are formed around the heads J at theback of the gear-teeth, and the bearings embrace said grooves in theform of collars, so that, while the screws and gears are free torevolve, no motion in a direction parallel with the screw-spindle ispermitted; consequently, when the screws are revolved they act upon theslides H and thereby move the vguides to the right or left, as the casemay be.

A shaft, L, is arranged longitudinally beneath the bed-plate B, fromwhich it is supported by suitable bearings b. Said shaft L is providedwith a series of bevel-pinions, L', which mesh with the bevel gear-headsJ of the screws I, so

roll, M, supported in a sliding bearing-piece, N,

which latter is fitted to move horizontally in grooves formed on thearms of an upright standard, O, as indicated in Figs. l and 3 of thedrawing. The standard O is fitted in a transverse slot in the bed B, andis provided with a clampingbolt or screw, c, also working in atransverse slot, whereby the feeding device can be held a-t any adjustedposition, as desired; and it will be observed that at whatever distancethe roll is set from the guide F said roll is always in an exactvertical position, so that the pressure is exerted squarely across theboard. A shaft, P, extends from the side of the machine through thestandard O and bearing-piece N, and is connected to the feed-roll M bymeans of the bevel-pinion P fixed to the shaft and bevel-gear M fixed tothe upper end of the roll. A metallic spring, d, of elliptic or othersuitable form or material, isplaced between the bearing-piece N andstandard `O, to press the roll M firmly against the stock, while itpermits it to conform to any irregularity of the boards. The outer endof the shaft P passes through the hub of a gear, Q, which is supportedin a bearinggQ, at the side of the frame A. The shaft vP is formedsquare or fitted to the hub of the gear Q by means of a spline, so thatit can slide freely through the gear in a direction parallel with itslength, and will, at the same time,re ceive a rotary motion from saidgear. The gear Q is connected for operation by means of intermediategears c e to the drivin g-gearf of the main feed-roller F', or, ifpreferred, to any other convenient portion of the machine. By the use ofthe vertical feed-roll M the board or stock, as it is moved forward, isheld firmly against the guide F, and in case the board should be crookedit is straightened by the pressure ofthe roll. By arranging the slidingdevices, relieving-sprin g, and supporting-standard in the manner hereinshown and described, the mechanism is rendered quite perfect andsatisfactory in its operation, while it is very convenient and easy ofadjustment. The bearings R which support the lower cutter-head I) areconnected to each other by a bar or plate, R', which latter is securedby means of screws or bolts h to a transverse slide-plate, S, fitted tomove between dovetailed or other formed ways T that extend transverselyacross the machine from side to side, as shown. By means of thisarrangement the bearing-bar or plate R and cutter-head D can be movedout from beneath the bed of the machine at either side, in the mannerillustrated in Fig. 5, thereby enabling` the operator to examine,sharpen, or remove the knives w ith facility and with out the necessityrand trouble of removing the presser-plate G or other portions of themachine which are situated above the cutter-head. The bearing-plate Itis furnished with vertical slots to receive the screws or bolts h, sothat said plate can be raised or depressed to adjust the cutter-head Dto the proper height, and apair of adj usting-screws, t', are arrangedthrough a projecting flange at the lower edge of the slideplate S, whichscrew into bosses on the bearingplate R and by means of which the partscan be adjusted to any desired degree of nicety. Setscrews la arearranged through one of the ways T for securing the slide-plate S inposition. The bed-plate B is cast with a series of longitudinaldepressions in its upper surface, beneath the upper cutter-head G andblocks of metal V, of the proper form and size, are accurately iittedinto said depressions and secured, by means of flushheaded screws orbolts, in the manner illustrated in Fig. ll. When it is desirable tohave any of the cutters run lower than the surface of the bed B one ormore of the blocks V may be removed, so that the cutter can run downinto the depression thus left open. By means of this construction Iobtain all the advantages of both the lattice and the solid beds. Theuse of the blocks V obviates one great objection which arises in the useof the open or lattice-bed when running nice smooth work-that is, of thechips and dirt catching upon the corners of the openings and scratchingthe boards, or otherwise interfering with the smooth and perfect runningof the stock.

The parts ofthe machine which are not herein specially referred to maybe made in any of the well-known forms employed in the construction ofcylinder molding and planing machines; consequently, further descriptionof said parts is unnecessary.

It will be understood that my improvements can be applied equally wellto machines used for sticking moldings or to machines used assurfaceplaners.

An adjustable or other stop device may be combined with the standard Oand slide-piece N, to prevent the spring d from forcing the feed-roll Mtoo far out when there is no stock running through the machine. In thisinstance a screw-bolt is employed, which is supported in the slideN andis situated directly below the shaft P, and is arranged so that itshead, coming in contact with the standard O, prevents further outwardmovement of the slide and roll.

Having described. my improvements in planing and molding machines, Iwould say that I do not claim such an arrangement of feed-roll as shownin the patent granted to H. H. Baker on the 15th of February, 1859; but

What I claim as new and of my invention, and desire to secure by LettersPatent, is-

1. The combination, with'the vertical side-feed -roll M, of theslide-bearing N, spring d or equivalent device, adjusting-standard O,shaft P, and gears M', P, and Q, said parts being constructed andarranged to operate substantially as and for the purposes set forth.

2. The combination, with the lower cutter-head and the bearings of thesame, of a slide-piece or plate supporting the said bearings, andarranged to slide in or on the frame transversely to the length of themachine, as shown and described, so that, when desired, the cutter-headmay be moved out from the side of the machine, for the purposes stated.

3. The combination, with the bearings It which support the lowercutter-head, of the bearingplate R', slide-plate S, and adjusting andclampscrews 7L i 7c, substantially as and for the purpose set forth.

HENRY A. LEE.

